To finance a vacation in 3 years, Elsie saves $360 at the beginning of every six months in an account paying interest at 11% compounded semi-annually.

(a) What will be the balance in her account when she takes the vacation?

_{(Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)}

(b) How much of the balance will be interest?

_{(Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)}

(c) If she waits an additional year to start her vacation, and continues to save the same amount of money, how much more money does she have to spend?

_{(Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)}